* Oscar [[spoiler:seeing his dad again after three seasons of his father having been believed to be dead]] must have been one of the crowners of Series 3 - 5... but then [[spoiler:the SKUL bomb happens, and although Oscar's injured dad has told Oscar to leave him there after opening an escape route, Oscar walks all the way out of the building with his limping dad. The other spies think he doesn't make it for a few of the saddest moments in the entire show -]] and then [[spoiler: the two emerge from the building, coughing but alive!]]